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Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Goodwill [Line Items]    
Balance $ 2,734 $ 1,476
Goodwill recorded in connection with an acquisition   1,239
Foreign currency translation adjustment 105 33
Balance $ 2,839 $ 2,748